Ho creato una semplice custom UICollectionViewCell
nello storyboard, l'ho fatto anche programmaticamente con risultati identici.UICollectionViewCell Layout automatico
Ha un singolare UIImageView
e due UILabels
, in questo modo:
<--UIIMAGEVIEW--> <--UILABEL-------->
|-(10px)- | | -(10px)- -(10px)-|
<---------------> <--UILABEL-------->
L'immagine è seduto sulla sinistra, poi a destra di essa sono due etichette sopra e sotto l'altro.
Ciascuno è distanziato con intervalli di 10 pixel e tutti centrati sull'asse Y delle celle. Le etichette quindi hanno una costante per compensarle dal centro (su e giù).
L'immagine ha un'altezza e una larghezza fisse di 44 px e le etichette hanno un'altezza fissa di 20 px (con larghezza flessibile).
I vincoli funzionano come previsto e non interrompono mai l'applicazione, ma sputano sempre queste infastidite informazioni del registro della console di seguito, in quanto apparentemente si stanno rompendo.
Se aggiungo questa linea alla sottoclasse UICollectionViewCell
, i vincoli non si rompono più e sputano errori della console, ma sono completamente rotti sullo schermo.
[self.contentView setTranslatesAutoresizingMaskIntoConstraints:NO];
Eventuali indizi? Per favore aiuto, sembra così illogico!
Ecco il codice di errore console:
2014-10-25 18:28:14.273 Air Plan[1579:580797] Unable to simultaneously satisfy constraints.
Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out which you don't expect; (2) find the code that added the unwanted constraint or constraints and fix it. (Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints)
(
"<NSLayoutConstraint:0x17009edc0 H:[UIImageView:0x1701f7d00(44)]>",
"<NSLayoutConstraint:0x17009f130 H:|-(10)-[UIImageView:0x1701f7d00] (Names: '|':UIView:0x170183810)>",
"<NSLayoutConstraint:0x17009f270 H:[UIImageView:0x1701f7d00]-(10)-[UILabel:0x155e59970'detailLbl']>",
"<NSLayoutConstraint:0x17009f310 H:[UILabel:0x155e59970'detailLbl']-(10)-| (Names: '|':UIView:0x170183810)>",
"<NSAutoresizingMaskLayoutConstraint:0x17409eff0 h=--& v=--& H:[UIView:0x170183810(50)]>"
)
Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x17009edc0 H:[UIImageView:0x1701f7d00(44)]>
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKit/UIView.h> may also be helpful.
2014-10-25 18:28:14.276 Air Plan[1579:580797] Unable to simultaneously satisfy constraints.
Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out which you don't expect; (2) find the code that added the unwanted constraint or constraints and fix it. (Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints)
(
"<NSLayoutConstraint:0x17009fcc0 H:[UIImageView:0x1701fa800(44)]>",
"<NSLayoutConstraint:0x17009ff40 H:|-(10)-[UIImageView:0x1701fa800] (Names: '|':UIView:0x170180a90)>",
"<NSLayoutConstraint:0x1702800a0 H:[UIImageView:0x1701fa800]-(10)-[UILabel:0x155e5b440'detailLbl']>",
"<NSLayoutConstraint:0x170280140 H:[UILabel:0x155e5b440'detailLbl']-(10)-| (Names: '|':UIView:0x170180a90)>",
"<NSAutoresizingMaskLayoutConstraint:0x17409ea00 h=--& v=--& H:[UIView:0x170180a90(50)]>"
)
Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x17009fcc0 H:[UIImageView:0x1701fa800(44)]>
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKit/UIView.h> may also be helpful.
2014-10-25 18:28:14.278 Air Plan[1579:580797] Unable to simultaneously satisfy constraints.
Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out which you don't expect; (2) find the code that added the unwanted constraint or constraints and fix it. (Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints)
(
"<NSLayoutConstraint:0x170280a00 H:[UIImageView:0x1701fab00(44)]>",
"<NSLayoutConstraint:0x170280c80 H:|-(10)-[UIImageView:0x1701fab00] (Names: '|':UIView:0x1701822f0)>",
"<NSLayoutConstraint:0x170280dc0 H:[UIImageView:0x1701fab00]-(10)-[UILabel:0x155e5cd10'detailLbl']>",
"<NSLayoutConstraint:0x170280e60 H:[UILabel:0x155e5cd10'detailLbl']-(10)-| (Names: '|':UIView:0x1701822f0)>",
"<NSAutoresizingMaskLayoutConstraint:0x17409f180 h=--& v=--& H:[UIView:0x1701822f0(50)]>"
)
Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x170280a00 H:[UIImageView:0x1701fab00(44)]>
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKit/UIView.h> may also be helpful.
2014-10-25 18:28:14.280 Air Plan[1579:580797] Unable to simultaneously satisfy constraints.
Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out which you don't expect; (2) find the code that added the unwanted constraint or constraints and fix it. (Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints)
(
"<NSLayoutConstraint:0x170281090 H:[UIImageView:0x1701fae00(44)]>",
"<NSLayoutConstraint:0x170281310 H:|-(10)-[UIImageView:0x1701fae00] (Names: '|':UIView:0x170182220)>",
"<NSLayoutConstraint:0x1702813b0 H:[UIImageView:0x1701fae00]-(10)-[UILabel:0x155e5d620'titleLbl']>",
"<NSLayoutConstraint:0x170281400 H:[UILabel:0x155e5d620'titleLbl']-(10)-| (Names: '|':UIView:0x170182220)>",
"<NSAutoresizingMaskLayoutConstraint:0x17409fd60 h=--& v=--& H:[UIView:0x170182220(50)]>"
)
Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x170281090 H:[UIImageView:0x1701fae00(44)]>
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKit/UIView.h> may also be helpful.
2014-10-25 18:28:14.282 Air Plan[1579:580797] Unable to simultaneously satisfy constraints.
Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out which you don't expect; (2) find the code that added the unwanted constraint or constraints and fix it. (Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't understand, refer to the documentation for the UIView property translatesAutoresizingMaskIntoConstraints)
(
"<NSLayoutConstraint:0x170281b80 H:[UIImageView:0x1701fb100(44)]>",
"<NSLayoutConstraint:0x17409f4a0 H:|-(10)-[UIImageView:0x1701fb100] (Names: '|':UIView:0x170182150)>",
"<NSLayoutConstraint:0x17409f5e0 H:[UIImageView:0x1701fb100]-(10)-[UILabel:0x155d64210'detailLbl']>",
"<NSLayoutConstraint:0x17409f680 H:[UILabel:0x155d64210'detailLbl']-(10)-| (Names: '|':UIView:0x170182150)>",
"<NSAutoresizingMaskLayoutConstraint:0x1742800f0 h=--& v=--& H:[UIView:0x170182150(50)]>"
)
Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x170281b80 H:[UIImageView:0x1701fb100(44)]>
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKit/UIView.h> may also be helpful.
Attualmente una rapida dovrebbe essere più simile: 'esclusione func awakeFromNib() {super.awakeFromNib() contentView.autoresizingMask = [UIViewAutoresizing.FlexibleWidth, UIViewAutoresizing.FlexibleHeight]}' – Apan